Recent questions tagged Class

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class - java.lang.ClassFormatError: Incompatible magic value 218774561

Hey everyone I am making my first applet for java today. I have been using a subdomain at ... Evolution.EvolutionApplet not Evolution.Evolution See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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class - Getting Python Tkinter Object Type

I am currently working on a program which handles a number of different possible entry widgets in a Python program. I ... how I can solve this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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class - How to redefine JavaScript (NOT CSS) classes, in the console?

I'm fairly new to JS classes, and am doing mostly back-end work. I was playing around with the new JS ... able to redefine everything I want. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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class - Comparing structures in C vs C++

I want to compare C++ class/structure objects. In C, most of the time, one knows exact size of the struct by adding ... equal) (I'm using g++) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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592 views

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class - Javascript Prototypes,objects,constructor??i am confused

I have gone through plenty of Stack Overflow question that had description but I seriously found them very ... Any simple explanation?? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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798 views

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class - c++ storing an object into an array of objects within the constructor of that object

I am trying to create an object and everytime I create an object, I then store that object in a static ... Objects } Is this possible? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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class - Can I safely extend javascript builtin classes?

Can I safely extend Javascript builtin classes, like Array? I.e. on which browsers/environments will the following not work: ... 3, 1, 2, 3] See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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class - How to import a file of classes in a Jenkins Pipeline?

I have a file that contains classes. Example : abstract class TestBase { String name abstract def fTest() def ... my Jenkins Pipeline ? Thx. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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class - Using Fractions in Python

I'm using classes here to input a fraction (when given the numerator and denominator), as well as ... ) print(add_output, multiply_output) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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class - how to uglify javascript classes?

I'm writing basic javascript using the classes syntax and trying to uglify it with gulp, but getting this error: ... 'scripts', 'watch']); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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974 views

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class - Python: function takes 1 positional argument but 2 were given, how?

I was creating a Sudoku Game in python with Tk. I got a error about the function on a keypress for a ... have included the self on my function See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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787 views

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class - Members vs method arguments access in C++

Can I have a method which takes arguments that are denoted with the same names as the members of the holding class? ... s this or Python's self? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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718 views

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class - python find the type of a function

I have a variable f. How can I determine its type? Here is my code, typed into a python interpreter, ... Python come on stderr or stdout? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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989 views

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class - Unresolved external symbol C++

I ahve a problem with a code below: ProgrammSettings.h #pragma once static class ProgrammSettings { public: static ... m doing wrong? Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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796 views

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class - C++: why it doesn't call a destructor?

I use extra brackets in my code. I thought when the destructor should be called after the local variable scope ... destructor in the first case? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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905 views

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class - Scala value not found

I'm having a very strange behaviour from my scala interpreter/compiler. Welcome to Scala version 2.10.3 (Java ... the same problem using SBT) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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770 views

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class not found when extending class that implements interface in PHP

<?php class A extends B {} class B implements C {} interface C {} the code above throws "Fatal error: Class ... ) 2002-2010, by Derick Rethans " See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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885 views

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class - Are static inner classes a good idea or poor design?

I'm find I have several places that having public static inner classes designed that extend "helper" classes makes ... wiki material or not. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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794 views

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class - Python newbie having a problem using classes

Im just beginning to mess around a bit with classes; however, I am running across a problem. class MyClass(object): ... . How do I fix this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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772 views

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class - Override default behavior of comparison operators in JavaScript

I have a custom Javascript class (created using John Resig's Simple Javascript Inheritance). I want to be ... comparators of my custom class? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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678 views

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class - R -apply- convert many columns from numeric to factor

I need to convert many columns that are numeric to factor type. An example table: df <- data.frame(A=1:10, ... doing as.factor for each column? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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920 views

1 answer

class - PHP: empty doesn't work with a getter method

I have a "getter" method like function getStuff($stuff){ return 'something'; } if I check it with empty($this-> ... $foo->stuff) echo 'see?'; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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849 views

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class - php static property

I have two code snippets (regarding the static keyword) which I expect them to have same output, but actually the ... :$var2; // Outputs 2 2 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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806 views

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class - C++ Non-static member functions overhead

I would like to know that, if we have the following class: class MyClass { public: MyClass(...) type ... large, it could drain performance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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727 views

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class - How to add n days to a Date in java without importing Date/Calendar from java API?

How do I add n days to a date in Java Creating my own java class? For example, my date is (dd/mm/ ... Code or idea will be highly apprecited See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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937 views

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class - How to implement __isset() magic method in PHP?

I'm trying to make functions like empty() and isset() work with data returned by methods. What I have so far: ... get a fatal error anyway) ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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class - Click button by find_element_by_class_name not working python selenium webdriver NOT working

I'm trying to add contacts on LinkedIn using Python and Selenium. I'm attempting to do so by adding the ... .com/qtdNsRtz Thanks in advance! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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class - How do I Use Inner Classes in PHP?

I'm from a Java background, and I want to use an inner class in php. Every time I put the inner class though ... , those have to be static? O_o See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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